Method and apparatus for automatically shuffling and cutting cards and conveying shuffled cards to a card dispensing shoe while permitting the simultaneous performance of the card dispensing operation

• US 5,000,453 A
• Filed: 12/21/1989
• Issued: 03/19/1991
• Est. Priority Date: 12/21/1989
• Status: Expired due to Fees

• Current Assignee: Multidec Systems, Inc.
• Original Assignee: Card-Tech, Ltd.
• Inventors: Stevens, Stanley, Skowronski, Paul A., Sweeney, Edward F. III
• Primary Examiner(s): Layno, Benjamin
• Assistant Examiner(s): Chiu, Raleigh W.
• Application Number:
  US07/455,996
• Time in Patent Office: 453 Days
• Field of Search: 273/148 A, 273/149 R, 273/149 P
• US Class Current: 273/149.00R
• CPC Class Codes: A63F 1/12 Card shufflers

Abstract

Method and appratus for automatically shuffling, cutting and delivering shuffled playing cards to a shoe without interfering with dispensing of playing cards from the shoe. The transparent covers, together with the design of the mechanism, permits observation by the players of the playing cards at all times throughout the shuffling, cutting and card delivery operations. The cards are randomly mixed by separation and subsequent merger. Cards are automatically fed to the shuffling mechanism by a drive motor. Cards are delivered to the card dealing shoe by an advancing member. A separation paddle acts as a barrier between the playing cards already in the shoe and the playing cards being delivered to the shoe. Upon completion of the delivery operation, the paddle is removed and placed at the end of the stack of cards. A jogging mechanism assures uniform stacking of the playing cards. The shuffling, stacking and jogging operations do not conflict with the dispensing of playing cards from the shoe.

Claims

1. Shuffling apparatus for mixing a plurality of playing cards comprising:

elevator means for receiving a stack of playing cards;

a shuffling station positioned above said elevator means;

first and second card receiving means positioned on opposite sides of said shuffling station;

means for moving said elevator means toward said shuffling station;

shuffling means arranged at said shuffling location for randomly feeding cards delivered to said shuffling means by said elevator means to said first and second card receiving means.

2. The apparatus of claim 1 further comprising means for moving said shuffling means in a reciprocating fashion in a direction transverse to the direction of movement of said elevator means.

3. The shuffling apparatus of claim 1 wherein said shuffling means is provided with first and second card drive means for respectively driving cards from said stack toward said first and second card receiving means in a non-uniform, random fashion.

4. The shuffling apparatus of claim 3 wherein said first and second driving means are each comprised of rotatable roller means for driving a playing card engaging the roller means in a predetermined direction.

5. The shuffling apparatus of claim 4 wherein each roller means is provided with a peripheral drive surface of a material for driving a playing card through frictional engagement between the roller means surface and the surface of a playing card.

6. The shuffling apparatus of claim 5 wherein the roller means has a rubber or rubber-like surface.

7. The shuffling apparatus of claim 6 wherein said lowering means is further comprised of sensing means for sensing when said elevator means reaches a predetermined position to generate an initiate lowering signal.

8. The shuffling apparatus of claim 1 further comprising:

lowering means responsive to removal of the playing cards on said elevator means for lowering said elevator means;

first pusher means responsive to lowering of said elevator means to a first predetermined position for pushing the cards collected in said first card receiving means onto said elevator means;

second pusher means responsive to said elevator means being lowered to a second predetermined location for pushing playing cards in said second card receiving means onto said elevator means.

9. The shuffling apparatus of claim 8 further comprising means for controlling the operating sequence of said first and second pusher means in a random fashion.

10. The apparatus of claim 9 further comprising guide means for aligning cards as they are pushed onto the elevator means in a direction transverse to the direction of movement of said pusher means,

said guide means including a pair of spaced guide flanges;

said guide flanges and a surface of the guide means therebetween defining a recess for aligning cards received in said recess on said elevator means;

said guide flanges including beveled edges engageable by cards being moved onto said elevator means by an associated one of said pusher means for displacing the guide flange beveled edge engaged by cards being moved onto the elevator means by one of said pusher means, away from the path of movement of the cards while the remaining flange engages the cards pushed onto the elevator means to limit movement of the cards, thereby aligning the cards on the elevator means delivered by a pusher means.

11. The apparatus of claim 10 wherein said guide means comprise a pair of substantially flat members arranged in side-by-side fashion and substantially parallel to the path of movement of the pusher means with side edges of each member being adjacent one another and said members lying in a common plane;

pivot means pivotally mounting said adjacent side edges;

the planar members being arranged on one side of the elevator means; and

the free ends of the planar members having flanges extending toward said elevator means, said flanges and the surfaces of the planar members facing the elevator means defining said recess for receiving and aligning a pack of cards entering said recess.

12. The apparatus of claim 11 further comprising bias means normally urging the flange ends of the planar members towards said elevator means and being yieldable to permit displacement of the flange ends of said planar members out of the path of movement of cards being pushed toward the elevator means by said pusher means.

13. The apparatus of claim 11 wherein said planar members are arranged within an opening in a vertical wall forming one side of the card shuffling and cutting apparatus;

each of said planar members having top and bottom edges each of said edges having portions thereof projecting into recesses in said opening of a shape conforming to said projections to prevent cards from being wedged into the gap space between the top and bottom edges of said planar members and the portions of the opening adjacent said top and bottom edges.

14. The apparatus of claim 9 further comprising spring loaded guide means arranged adjacent to said elevator means and having guide edges extending into the path of movement of cards pushed onto the elevator means by said pusher means for preventing cards delivered to said card receiving regions by said rollers from advancing to said elevator means and being yieldable to be displaced from said path when a stack of cards is pushed toward said elevator means by a pusher means.

15. The apparatus of claim 14 wherein said guide edges are bevelled to align the stack of cards being collected in its associated card receiving region and for aligning cards as they are being pushed onto the elevator means by an associated pusher means.

16. The apparatus of claim 9 wherein said card receiving regions are each provided with a vertical back wall and an inclined surface for supporting cards collected upon said surface to urge the cards toward said back wall to align the cards preparatory to being pushed upon said elevator means.

17. The shuffling apparatus of claim 8 wherein said first pusher means is further comprised of sensor means for sensing the effective top of the elevator means to generate an initiate pusher means signal, said effective top being the top surface of the elevator means when there are no playing cards on the elevator means, or the top surface of the top playing card is resting upon said elevator means.

18. Shuffling apparatus for playing cards comprising:

a housing;

shuffling means in said housing;

elevator means in said housing for delivering playing cards to said shuffling means;

a closure member movable between a first position unsealing an opening in said housing and a second position sealing said opening;

said elevator means being positioned adjacent to said opening;

playing card transfer means positioned adjacent to said housing and including a playing card holder movable from a first position outside of said housing and through said opening to a second position inside said housing and above said elevator means;

means responsive to the deposit of playing cards upon said holder for moving said closure member to said first position;

means responsive to movement of said closure member to said first position for moving said holder to said second position and thereafter to said first position causing playing cards on said holder to be transferred to said elevator means;

means responsive to movement of said holder to said first position for moving said closure means to said second position; and

means responsive to movement of said closure means to said second position for moving said elevator means to deliver the playing cards on said elevator means to said shuffling means.

19. The apparatus of claim 18 further comprising manually operable start means operable by an operator for placement of a stack of cards on said holder;

said means responsive to the deposit of cards on said holder further including means responsive to operation of said start switch means to move said closure member to said first position.

20. The apparatus of claim 18 wherein said transfer means is provided with a surface for receiving a stack of cards, said surface having a plurality of spaced grooves,

said holder having a plurality of spaced projections each adapted to be sidably received in a respective one of said grooves to guide the movement of said holder and to prevent cards from being wedged between said holder and said receiving surface.

21. Apparatus for delivering playing cards to a card dealing shoe having a diagonally aligned hollow card chute, with a rear open end for receiving playing cards, and delivering to the playing cards a forward card dispensing end, comprising:

shuffling means for shuffling said playing cards;

elevator means for supporting a stack of shuffled playing cards received from said shuffling means in a horizontal position;

means for moving said elevator means in a downward direction;

means for tilting said stack of playing cards to assume a diagonal orientation from said horizontal position as the elevator means passes a predetermined location;

swingable guide means swingable about pivot means from a first substantially vertical position to a second diagonally aligned position whereby the free end of said swingable guide means moves from a position substantially vertically above said pivot means to a second position adjacent the open rear end of said chute;

said swingable guide means having a guide surface extending diagonally downwardly from said tilting means toward said chute open rear end to whereby the stack of playing cards tilted by said tilting means slides along said guide surface diagonally downwardly and on to said chute through said rear open end.

22. The apparatus of claim 21 further comprising:

substantially planar separator means arranged in a diagonally aligned manner at a first position a spaced distance from said forward card delivery end for separating playing cards guided toward said rear open end from between said delivery end and said separator means;

means for moving said separator means from its first position to a second position closer to the rear open end of said chute to cause all of the playing cards in said chute to be positioned between said separator means and said card delivery end.

23. The apparatus of claim 22 further comprising means for urging said separator means toward said delivery end to maintain advancement of said cards toward said forward card dispensing end.

24. The apparatus of claim 22 further comprising means for lifting said separator means above the cards in said chute and placing said separator means behind the last card delivered to said card chute.

25. The apparatus of claim 22 further comprising means for moving said separator means in an abrupt manner through a small distance in the direction in which the cards are moved toward said forward card dispensing end to jog said cards.

26. The apparatus of claim 22 further comprising means for moving said tilting means toward said card shoe for advancing the tilted cards into said chute.

27. Apparatus for delivering cards from a receiving station to a card shoe comprising:

guide means having a diagonally aligned guiding surface for moving cards from said card receiving means toward said card shoe, the region behind the card shoe being a card receiving region;

tilt means at the upper end of said guide means for tilting the cards from a horizontal orientation to a diagonal orientation as cards are lowered onto said guide means;

means for moving said tilt means to push said tilted cards along said guide means and into said card receiving region said shoe;

paddle means including a paddle for resting against the cards when in the card receiving region;

said paddle means further including means for lifting said paddle upwardly and away from said card receiving region when moved in a first direction and downwardly and into the card receiving region cards when moved in a second direction;

means for moving said paddle means in a rearward direction away from said card shoe and a forward direction toward said card shoe;

control means for operating said moving means to move said paddle means upwardly and away from said guide means as cards are being pushed on said guide means by said tilting means; and

said control means further comprising operating said moving means for lowering said paddle toward said guide means and for moving said paddle means in a forward direction toward said shoe to maintain the cards pushed into said card shoe in close engagement.

28. The apparatus of claim 27 further comprising means for reciprocating said paddle means in a forward and rearward direction through a small distance and at spaced time intervals for maintaining said cards in alignment in the card shoe.

29. A method for shuffling and cutting cards comprising the steps of:

(a) providing a card receiving station, movable elevator means and a movable door arranged between said card receiving station and said elevator means;

(b) providing a pusher for pushing cards deposited on the card receiving station towards said elevator means;

(c) opening said door when said pusher is in a position displaced from the card receiving station to permit cards to be placed thereon;

(d) lifting the elevator means so that it is substantially aligned with said card receiving station in order to enable cards to be pushed directly onto the elevator means;

(e) lowering the elevator means by an amount sufficient to align the cards deposited thereon with the card receiving station to receive a subsequent stack of cards;

(f) closing the door;

(g) moving the elevator means upwardly toward shuffling means comprised of a pair of rollers;

(h) rotating said rollers and reciprocating the pair of rotating rollers in a direction transverse to the direction of movement of the elevator means causing cards engaging said rollers to be advanced in a leftward and rightward direction on opposite sides of the elevator means toward card receiving locations, said cards being removed from said stack by said roller means in a random fashion;

(i) lowering the elevator means to a position to receive cards arranged in said lefthand and righthand card receiving regions; and

(j) pushing the cards from said card receiving regions onto said elevator means in a random fashion.

30. The method of claim 29 further comprising repeating steps (a) to (j) in order to shuffle and cut the cards N times wherein N is a real integer greater than 1.

31. The method of claim 29 further comprising the steps of providing a hollow card dealing shoe;

moving the elevator means downwardly to a dispensing location; and

moving the cards from the dispensing location into said card shoe.

32. The method of claim 31 wherein the step of moving the cards from the dispensing location into the card shoe further comprises the steps of arranging guides between the card dispensing location and the rear of the card shoe;

tilting the cards delivered to the dispensing location by the elevator means to a diagonal orientation; and

pushing the diagonally aligned group of cards along said guide means and into said card shoe.

33. The method of claim 32 further comprising the steps of providing a plate for resting against the cards in the card shoe responsive to the delivery of cards to the card shoe;

lifting the plate upwardly and away from the cards within the card shoe preparatory to the delivery of cards to the card shoe along said guide means;

moving the plate in a direction away from the rearward end of the card shoe;

lowering the plate; and

thereafter moving the plate toward said card shoe into engagement with the last card delivered thereto along said guide means.

34. The method of claim 33 comprising the step of moving said plate in a reciprocating manner away from and toward the card shoe to push against the card into the card shoe and maintain proper alignment thereof.

35. A method for shuffling and cutting cards through the utilization of a movable elevator means, a roller assembly including a pair of rollers and pusher means for cutting cards, said method comprising the steps of:

(a) aligning the elevator means with a card loading station for receiving cards;

(b) lowering the elevator means upon receipt of the cards so that the top of the stack of cards is aligned with the card receiving means;

(c) moving the elevator means a fixed distance at a first high speed rate upwardly toward said roller means which are arrange at a spaced distance above the height of the card receiving location to move the top of the stack of cards just below the roller means;

(d) reducing the rate of movement of said elevator means when said elevator means has moved said fixed distance; and

(e) rotating said rollers in first and second opposing directions and reciprocating the roller assembly back-and-forth along a path which is transverse to the longitudinal axis of the elevator means for delivering cards to the left and to the right of said elevator means and into said first and second card receiving regions whereby the number of cards delivered in the leftward and rightward direction and the order of delivery is random.

36. The method of claim 35 further comprising the steps of:

providing pushers at the lower end of each of the card receiving regions;

lowering the elevator means responsive to the movement of all of the cards off of the elevator means by said roller means to a height to place the elevator means into alignment with said pushers;

randomly selecting one of said pushers for pushing the cards in its associated card receiving region onto said elevator means;

lowering said elevator means to place the top of the cards delivered thereon into alignment with the height of the remaining pusher; and

operating the remaining pusher to push the stack of the cards in its associated card receiving region onto said elevator means.

37. The method of claim 36 further comprising the step of:

providing a dealing shoe for receiving cards which have been shuffled and cut;

providing a tilting means with a diagonally aligned upper surface;

lowering the elevator means to lower the cards thereon upon the diagonally aligned upper surface to move the cards from a horizontal alignment to a diagonal alignment;

providing a diagonally aligned guide surface between the dealing shoe and the tilting means; and

moving the tilting means for pushing the diagonally oriented cards along the guide surface and into the dealing shoe.